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12#include <linux/module.h>
13#include <linux/delay.h>
14#include <linux/clk.h>
15#include <linux/io.h>
16#include <linux/pm_runtime.h>
17#include <linux/regmap.h>
18#include <linux/log2.h>
19
20#include <sound/pcm_params.h>
21#include <sound/soc.h>
22#include <sound/soc-dapm.h>
23
24#define SUN8I_SYSCLK_CTL 0x00c
25#define SUN8I_SYSCLK_CTL_AIF1CLK_ENA 11
26#define SUN8I_SYSCLK_CTL_AIF1CLK_SRC_PLL 9
27#define SUN8I_SYSCLK_CTL_AIF1CLK_SRC 8
28#define SUN8I_SYSCLK_CTL_SYSCLK_ENA 3
29#define SUN8I_SYSCLK_CTL_SYSCLK_SRC 0
30#define SUN8I_MOD_CLK_ENA 0x010
31#define SUN8I_MOD_CLK_ENA_AIF1 15
32#define SUN8I_MOD_CLK_ENA_ADC 3
33#define SUN8I_MOD_CLK_ENA_DAC 2
34#define SUN8I_MOD_RST_CTL 0x014
35#define SUN8I_MOD_RST_CTL_AIF1 15
36#define SUN8I_MOD_RST_CTL_ADC 3
37#define SUN8I_MOD_RST_CTL_DAC 2
38#define SUN8I_SYS_SR_CTRL 0x018
39#define SUN8I_SYS_SR_CTRL_AIF1_FS 12
40#define SUN8I_SYS_SR_CTRL_AIF2_FS 8
41#define SUN8I_AIF1CLK_CTRL 0x040
42#define SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD 15
43#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV 14
44#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV 13
45#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV 9
46#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV 6
47#define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ 4
48#define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_16 (1 << 4)
49#define SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT 2
50#define SUN8I_AIF1_ADCDAT_CTRL 0x044
51#define SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0L_ENA 15
52#define SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0R_ENA 14
53#define SUN8I_AIF1_DACDAT_CTRL 0x048
54#define SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0L_ENA 15
55#define SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0R_ENA 14
56#define SUN8I_AIF1_MXR_SRC 0x04c
57#define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF1DA0L 15
58#define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACL 14
59#define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_ADCL 13
60#define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACR 12
61#define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF1DA0R 11
62#define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACR 10
63#define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_ADCR 9
64#define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACL 8
65#define SUN8I_ADC_DIG_CTRL 0x100
66#define SUN8I_ADC_DIG_CTRL_ENDA 15
67#define SUN8I_ADC_DIG_CTRL_ADOUT_DTS 2
68#define SUN8I_ADC_DIG_CTRL_ADOUT_DLY 1
69#define SUN8I_DAC_DIG_CTRL 0x120
70#define SUN8I_DAC_DIG_CTRL_ENDA 15
71#define SUN8I_DAC_MXR_SRC 0x130
72#define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA0L 15
73#define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA1L 14
74#define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF2DACL 13
75#define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_ADCL 12
76#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA0R 11
77#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA1R 10
78#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF2DACR 9
79#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_ADCR 8
80
81#define SUN8I_SYS_SR_CTRL_AIF1_FS_MASK GENMASK(15, 12)
82#define SUN8I_SYS_SR_CTRL_AIF2_FS_MASK GENMASK(11, 8)
83#define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK GENMASK(5, 4)
84#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK GENMASK(8, 6)
85#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK GENMASK(12, 9)
86
87struct sun8i_codec {
88 struct device *dev;
89 struct regmap *regmap;
90 struct clk *clk_module;
91 struct clk *clk_bus;
92};
93
94static int sun8i_codec_runtime_resume(struct device *dev)
95{
96 struct sun8i_codec *scodec = dev_get_drvdata(dev);
97 int ret;
98
99 ret = clk_prepare_enable(scodec->clk_module);
100 if (ret) {
101 dev_err(dev, "Failed to enable the module clock\n");
102 return ret;
103 }
104
105 ret = clk_prepare_enable(scodec->clk_bus);
106 if (ret) {
107 dev_err(dev, "Failed to enable the bus clock\n");
108 goto err_disable_modclk;
109 }
110
111 regcache_cache_only(scodec->regmap, false);
112
113 ret = regcache_sync(scodec->regmap);
114 if (ret) {
115 dev_err(dev, "Failed to sync regmap cache\n");
116 goto err_disable_clk;
117 }
118
119 return 0;
120
121err_disable_clk:
122 clk_disable_unprepare(scodec->clk_bus);
123
124err_disable_modclk:
125 clk_disable_unprepare(scodec->clk_module);
126
127 return ret;
128}
129
130static int sun8i_codec_runtime_suspend(struct device *dev)
131{
132 struct sun8i_codec *scodec = dev_get_drvdata(dev);
133
134 regcache_cache_only(scodec->regmap, true);
135 regcache_mark_dirty(scodec->regmap);
136
137 clk_disable_unprepare(scodec->clk_module);
138 clk_disable_unprepare(scodec->clk_bus);
139
140 return 0;
141}
142
143static int sun8i_codec_get_hw_rate(struct snd_pcm_hw_params *params)
144{
145 unsigned int rate = params_rate(params);
146
147 switch (rate) {
148 case 8000:
149 case 7350:
150 return 0x0;
151 case 11025:
152 return 0x1;
153 case 12000:
154 return 0x2;
155 case 16000:
156 return 0x3;
157 case 22050:
158 return 0x4;
159 case 24000:
160 return 0x5;
161 case 32000:
162 return 0x6;
163 case 44100:
164 return 0x7;
165 case 48000:
166 return 0x8;
167 case 96000:
168 return 0x9;
169 case 192000:
170 return 0xa;
171 default:
172 return -EINVAL;
173 }
174}
175
176static int sun8i_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
177{
178 struct sun8i_codec *scodec = snd_soc_component_get_drvdata(dai->component);
179 u32 value;
180
181
182 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
183 case SND_SOC_DAIFMT_CBS_CFS:
184 value = 0x1;
185 break;
186 case SND_SOC_DAIFMT_CBM_CFM:
187 value = 0x0;
188 break;
189 default:
190 return -EINVAL;
191 }
192 regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
193 BIT(SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD),
194 value << SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD);
195
196
197 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
198 case SND_SOC_DAIFMT_NB_NF:
199 value = 0x0;
200 break;
201 case SND_SOC_DAIFMT_IB_IF:
202 value = 0x1;
203 break;
204 default:
205 return -EINVAL;
206 }
207 regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
208 BIT(SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV),
209 value << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV);
210
211
212
213
214
215
216
217
218
219
220
221 regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
222 BIT(SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV),
223 !value << SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV);
224
225
226 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
227 case SND_SOC_DAIFMT_I2S:
228 value = 0x0;
229 break;
230 case SND_SOC_DAIFMT_LEFT_J:
231 value = 0x1;
232 break;
233 case SND_SOC_DAIFMT_RIGHT_J:
234 value = 0x2;
235 break;
236 case SND_SOC_DAIFMT_DSP_A:
237 case SND_SOC_DAIFMT_DSP_B:
238 value = 0x3;
239 break;
240 default:
241 return -EINVAL;
242 }
243 regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
244 BIT(SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT),
245 value << SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT);
246
247 return 0;
248}
249
250struct sun8i_codec_clk_div {
251 u8 div;
252 u8 val;
253};
254
255static const struct sun8i_codec_clk_div sun8i_codec_bclk_div[] = {
256 { .div = 1, .val = 0 },
257 { .div = 2, .val = 1 },
258 { .div = 4, .val = 2 },
259 { .div = 6, .val = 3 },
260 { .div = 8, .val = 4 },
261 { .div = 12, .val = 5 },
262 { .div = 16, .val = 6 },
263 { .div = 24, .val = 7 },
264 { .div = 32, .val = 8 },
265 { .div = 48, .val = 9 },
266 { .div = 64, .val = 10 },
267 { .div = 96, .val = 11 },
268 { .div = 128, .val = 12 },
269 { .div = 192, .val = 13 },
270};
271
272static u8 sun8i_codec_get_bclk_div(struct sun8i_codec *scodec,
273 unsigned int rate,
274 unsigned int word_size)
275{
276 unsigned long clk_rate = clk_get_rate(scodec->clk_module);
277 unsigned int div = clk_rate / rate / word_size / 2;
278 unsigned int best_val = 0, best_diff = ~0;
279 int i;
280
281 for (i = 0; i < ARRAY_SIZE(sun8i_codec_bclk_div); i++) {
282 const struct sun8i_codec_clk_div *bdiv = &sun8i_codec_bclk_div[i];
283 unsigned int diff = abs(bdiv->div - div);
284
285 if (diff < best_diff) {
286 best_diff = diff;
287 best_val = bdiv->val;
288 }
289 }
290
291 return best_val;
292}
293
294static int sun8i_codec_get_lrck_div(unsigned int channels,
295 unsigned int word_size)
296{
297 unsigned int div = word_size * channels;
298
299 if (div < 16 || div > 256)
300 return -EINVAL;
301
302 return ilog2(div) - 4;
303}
304
305static int sun8i_codec_hw_params(struct snd_pcm_substream *substream,
306 struct snd_pcm_hw_params *params,
307 struct snd_soc_dai *dai)
308{
309 struct sun8i_codec *scodec = snd_soc_component_get_drvdata(dai->component);
310 int sample_rate, lrck_div;
311 u8 bclk_div;
312
313
314
315
316
317 regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
318 SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK,
319 SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_16);
320
321 bclk_div = sun8i_codec_get_bclk_div(scodec, params_rate(params), 16);
322 regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
323 SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK,
324 bclk_div << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV);
325
326 lrck_div = sun8i_codec_get_lrck_div(params_channels(params),
327 params_physical_width(params));
328 if (lrck_div < 0)
329 return lrck_div;
330
331 regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
332 SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK,
333 lrck_div << SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV);
334
335 sample_rate = sun8i_codec_get_hw_rate(params);
336 if (sample_rate < 0)
337 return sample_rate;
338
339 regmap_update_bits(scodec->regmap, SUN8I_SYS_SR_CTRL,
340 SUN8I_SYS_SR_CTRL_AIF1_FS_MASK,
341 sample_rate << SUN8I_SYS_SR_CTRL_AIF1_FS);
342 regmap_update_bits(scodec->regmap, SUN8I_SYS_SR_CTRL,
343 SUN8I_SYS_SR_CTRL_AIF2_FS_MASK,
344 sample_rate << SUN8I_SYS_SR_CTRL_AIF2_FS);
345
346 return 0;
347}
348
349static const struct snd_kcontrol_new sun8i_dac_mixer_controls[] = {
350 SOC_DAPM_DOUBLE("AIF1 Slot 0 Digital DAC Playback Switch",
351 SUN8I_DAC_MXR_SRC,
352 SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA0L,
353 SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA0R, 1, 0),
354 SOC_DAPM_DOUBLE("AIF1 Slot 1 Digital DAC Playback Switch",
355 SUN8I_DAC_MXR_SRC,
356 SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA1L,
357 SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA1R, 1, 0),
358 SOC_DAPM_DOUBLE("AIF2 Digital DAC Playback Switch", SUN8I_DAC_MXR_SRC,
359 SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF2DACL,
360 SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF2DACR, 1, 0),
361 SOC_DAPM_DOUBLE("ADC Digital DAC Playback Switch", SUN8I_DAC_MXR_SRC,
362 SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_ADCL,
363 SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_ADCR, 1, 0),
364};
365
366static const struct snd_kcontrol_new sun8i_input_mixer_controls[] = {
367 SOC_DAPM_DOUBLE("AIF1 Slot 0 Digital ADC Capture Switch",
368 SUN8I_AIF1_MXR_SRC,
369 SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF1DA0L,
370 SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF1DA0R, 1, 0),
371 SOC_DAPM_DOUBLE("AIF2 Digital ADC Capture Switch", SUN8I_AIF1_MXR_SRC,
372 SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACL,
373 SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACR, 1, 0),
374 SOC_DAPM_DOUBLE("AIF1 Data Digital ADC Capture Switch",
375 SUN8I_AIF1_MXR_SRC,
376 SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_ADCL,
377 SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_ADCR, 1, 0),
378 SOC_DAPM_DOUBLE("AIF2 Inv Digital ADC Capture Switch",
379 SUN8I_AIF1_MXR_SRC,
380 SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACR,
381 SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACL, 1, 0),
382};
383
384static const struct snd_soc_dapm_widget sun8i_codec_dapm_widgets[] = {
385
386 SND_SOC_DAPM_SUPPLY("DAC", SUN8I_DAC_DIG_CTRL, SUN8I_DAC_DIG_CTRL_ENDA,
387 0, NULL, 0),
388 SND_SOC_DAPM_SUPPLY("ADC", SUN8I_ADC_DIG_CTRL, SUN8I_ADC_DIG_CTRL_ENDA,
389 0, NULL, 0),
390
391
392 SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Left", "Playback", 0,
393 SUN8I_AIF1_DACDAT_CTRL,
394 SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0L_ENA, 0),
395 SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Right", "Playback", 0,
396 SUN8I_AIF1_DACDAT_CTRL,
397 SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0R_ENA, 0),
398
399
400 SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Left ADC", "Capture", 0,
401 SUN8I_AIF1_ADCDAT_CTRL,
402 SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0L_ENA, 0),
403 SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Right ADC", "Capture", 0,
404 SUN8I_AIF1_ADCDAT_CTRL,
405 SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0R_ENA, 0),
406
407
408 SOC_MIXER_ARRAY("Left Digital DAC Mixer", SND_SOC_NOPM, 0, 0,
409 sun8i_dac_mixer_controls),
410 SOC_MIXER_ARRAY("Right Digital DAC Mixer", SND_SOC_NOPM, 0, 0,
411 sun8i_dac_mixer_controls),
412 SOC_MIXER_ARRAY("Left Digital ADC Mixer", SND_SOC_NOPM, 0, 0,
413 sun8i_input_mixer_controls),
414 SOC_MIXER_ARRAY("Right Digital ADC Mixer", SND_SOC_NOPM, 0, 0,
415 sun8i_input_mixer_controls),
416
417
418 SND_SOC_DAPM_SUPPLY("MODCLK AFI1", SUN8I_MOD_CLK_ENA,
419 SUN8I_MOD_CLK_ENA_AIF1, 0, NULL, 0),
420 SND_SOC_DAPM_SUPPLY("MODCLK DAC", SUN8I_MOD_CLK_ENA,
421 SUN8I_MOD_CLK_ENA_DAC, 0, NULL, 0),
422 SND_SOC_DAPM_SUPPLY("MODCLK ADC", SUN8I_MOD_CLK_ENA,
423 SUN8I_MOD_CLK_ENA_ADC, 0, NULL, 0),
424 SND_SOC_DAPM_SUPPLY("AIF1", SUN8I_SYSCLK_CTL,
425 SUN8I_SYSCLK_CTL_AIF1CLK_ENA, 0, NULL, 0),
426 SND_SOC_DAPM_SUPPLY("SYSCLK", SUN8I_SYSCLK_CTL,
427 SUN8I_SYSCLK_CTL_SYSCLK_ENA, 0, NULL, 0),
428
429 SND_SOC_DAPM_SUPPLY("AIF1 PLL", SUN8I_SYSCLK_CTL,
430 SUN8I_SYSCLK_CTL_AIF1CLK_SRC_PLL, 0, NULL, 0),
431
432 SND_SOC_DAPM_SUPPLY("SYSCLK AIF1", SUN8I_SYSCLK_CTL,
433 SUN8I_SYSCLK_CTL_SYSCLK_SRC, 1, NULL, 0),
434
435
436 SND_SOC_DAPM_SUPPLY("RST AIF1", SUN8I_MOD_RST_CTL,
437 SUN8I_MOD_RST_CTL_AIF1, 0, NULL, 0),
438 SND_SOC_DAPM_SUPPLY("RST DAC", SUN8I_MOD_RST_CTL,
439 SUN8I_MOD_RST_CTL_DAC, 0, NULL, 0),
440 SND_SOC_DAPM_SUPPLY("RST ADC", SUN8I_MOD_RST_CTL,
441 SUN8I_MOD_RST_CTL_ADC, 0, NULL, 0),
442
443 SND_SOC_DAPM_MIC("Headset Mic", NULL),
444 SND_SOC_DAPM_MIC("Mic", NULL),
445
446};
447
448static const struct snd_soc_dapm_route sun8i_codec_dapm_routes[] = {
449
450 { "AIF1", NULL, "SYSCLK AIF1" },
451 { "AIF1 PLL", NULL, "AIF1" },
452 { "RST AIF1", NULL, "AIF1 PLL" },
453 { "MODCLK AFI1", NULL, "RST AIF1" },
454 { "DAC", NULL, "MODCLK AFI1" },
455 { "ADC", NULL, "MODCLK AFI1" },
456
457 { "RST DAC", NULL, "SYSCLK" },
458 { "MODCLK DAC", NULL, "RST DAC" },
459 { "DAC", NULL, "MODCLK DAC" },
460
461 { "RST ADC", NULL, "SYSCLK" },
462 { "MODCLK ADC", NULL, "RST ADC" },
463 { "ADC", NULL, "MODCLK ADC" },
464
465
466 { "AIF1 Slot 0 Right", NULL, "DAC" },
467 { "AIF1 Slot 0 Left", NULL, "DAC" },
468
469
470 { "Left Digital DAC Mixer", "AIF1 Slot 0 Digital DAC Playback Switch",
471 "AIF1 Slot 0 Left"},
472 { "Right Digital DAC Mixer", "AIF1 Slot 0 Digital DAC Playback Switch",
473 "AIF1 Slot 0 Right"},
474
475
476 { "AIF1 Slot 0 Right ADC", NULL, "ADC" },
477 { "AIF1 Slot 0 Left ADC", NULL, "ADC" },
478
479
480 { "Left Digital ADC Mixer", "AIF1 Data Digital ADC Capture Switch",
481 "AIF1 Slot 0 Left ADC" },
482 { "Right Digital ADC Mixer", "AIF1 Data Digital ADC Capture Switch",
483 "AIF1 Slot 0 Right ADC" },
484};
485
486static const struct snd_soc_dai_ops sun8i_codec_dai_ops = {
487 .hw_params = sun8i_codec_hw_params,
488 .set_fmt = sun8i_set_fmt,
489};
490
491static struct snd_soc_dai_driver sun8i_codec_dai = {
492 .name = "sun8i",
493
494 .playback = {
495 .stream_name = "Playback",
496 .channels_min = 1,
497 .channels_max = 2,
498 .rates = SNDRV_PCM_RATE_8000_192000,
499 .formats = SNDRV_PCM_FMTBIT_S16_LE,
500 },
501
502 .capture = {
503 .stream_name = "Capture",
504 .channels_min = 1,
505 .channels_max = 2,
506 .rates = SNDRV_PCM_RATE_8000_192000,
507 .formats = SNDRV_PCM_FMTBIT_S16_LE,
508 .sig_bits = 24,
509 },
510
511 .ops = &sun8i_codec_dai_ops,
512};
513
514static const struct snd_soc_component_driver sun8i_soc_component = {
515 .dapm_widgets = sun8i_codec_dapm_widgets,
516 .num_dapm_widgets = ARRAY_SIZE(sun8i_codec_dapm_widgets),
517 .dapm_routes = sun8i_codec_dapm_routes,
518 .num_dapm_routes = ARRAY_SIZE(sun8i_codec_dapm_routes),
519 .idle_bias_on = 1,
520 .use_pmdown_time = 1,
521 .endianness = 1,
522 .non_legacy_dai_naming = 1,
523};
524
525static const struct regmap_config sun8i_codec_regmap_config = {
526 .reg_bits = 32,
527 .reg_stride = 4,
528 .val_bits = 32,
529 .max_register = SUN8I_DAC_MXR_SRC,
530
531 .cache_type = REGCACHE_FLAT,
532};
533
534static int sun8i_codec_probe(struct platform_device *pdev)
535{
536 struct resource *res_base;
537 struct sun8i_codec *scodec;
538 void __iomem *base;
539 int ret;
540
541 scodec = devm_kzalloc(&pdev->dev, sizeof(*scodec), GFP_KERNEL);
542 if (!scodec)
543 return -ENOMEM;
544
545 scodec->dev = &pdev->dev;
546
547 scodec->clk_module = devm_clk_get(&pdev->dev, "mod");
548 if (IS_ERR(scodec->clk_module)) {
549 dev_err(&pdev->dev, "Failed to get the module clock\n");
550 return PTR_ERR(scodec->clk_module);
551 }
552
553 scodec->clk_bus = devm_clk_get(&pdev->dev, "bus");
554 if (IS_ERR(scodec->clk_bus)) {
555 dev_err(&pdev->dev, "Failed to get the bus clock\n");
556 return PTR_ERR(scodec->clk_bus);
557 }
558
559 res_base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
560 base = devm_ioremap_resource(&pdev->dev, res_base);
561 if (IS_ERR(base)) {
562 dev_err(&pdev->dev, "Failed to map the registers\n");
563 return PTR_ERR(base);
564 }
565
566 scodec->regmap = devm_regmap_init_mmio(&pdev->dev, base,
567 &sun8i_codec_regmap_config);
568 if (IS_ERR(scodec->regmap)) {
569 dev_err(&pdev->dev, "Failed to create our regmap\n");
570 return PTR_ERR(scodec->regmap);
571 }
572
573 platform_set_drvdata(pdev, scodec);
574
575 pm_runtime_enable(&pdev->dev);
576 if (!pm_runtime_enabled(&pdev->dev)) {
577 ret = sun8i_codec_runtime_resume(&pdev->dev);
578 if (ret)
579 goto err_pm_disable;
580 }
581
582 ret = devm_snd_soc_register_component(&pdev->dev, &sun8i_soc_component,
583 &sun8i_codec_dai, 1);
584 if (ret) {
585 dev_err(&pdev->dev, "Failed to register codec\n");
586 goto err_suspend;
587 }
588
589 return ret;
590
591err_suspend:
592 if (!pm_runtime_status_suspended(&pdev->dev))
593 sun8i_codec_runtime_suspend(&pdev->dev);
594
595err_pm_disable:
596 pm_runtime_disable(&pdev->dev);
597
598 return ret;
599}
600
601static int sun8i_codec_remove(struct platform_device *pdev)
602{
603 pm_runtime_disable(&pdev->dev);
604 if (!pm_runtime_status_suspended(&pdev->dev))
605 sun8i_codec_runtime_suspend(&pdev->dev);
606
607 return 0;
608}
609
610static const struct of_device_id sun8i_codec_of_match[] = {
611 { .compatible = "allwinner,sun8i-a33-codec" },
612 {}
613};
614MODULE_DEVICE_TABLE(of, sun8i_codec_of_match);
615
616static const struct dev_pm_ops sun8i_codec_pm_ops = {
617 SET_RUNTIME_PM_OPS(sun8i_codec_runtime_suspend,
618 sun8i_codec_runtime_resume, NULL)
619};
620
621static struct platform_driver sun8i_codec_driver = {
622 .driver = {
623 .name = "sun8i-codec",
624 .of_match_table = sun8i_codec_of_match,
625 .pm = &sun8i_codec_pm_ops,
626 },
627 .probe = sun8i_codec_probe,
628 .remove = sun8i_codec_remove,
629};
630module_platform_driver(sun8i_codec_driver);
631
632MODULE_DESCRIPTION("Allwinner A33 (sun8i) codec driver");
633MODULE_AUTHOR("Mylène Josserand <mylene.josserand@free-electrons.com>");
634MODULE_LICENSE("GPL");
635MODULE_ALIAS("platform:sun8i-codec");
636
